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Pteraspidomorphi

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Pteraspidomorpha (also frequently spelled Pteraspidomorphi) is an extinct class of early jawless fish. They have long been regarded as closely related or even ancestral to jawed vertebrates, but the few characteristics they share with the latter are now considered as basal traits for all vertebrates.

Wikidata facts

Parent taxon
Craniata
Image
Drepanaspis gemuendina.jpg
Show 6 more facts
Commons category
Vertebrata
taxon name
Pteraspidomorphi
taxon rank
class
topic's main category
Category:Pteraspidomorphi
start time
497000000-
end time
359000000-
Sources (1)

via Wikidata · CC0

Article · Italiano

Gli pteraspidomorfi (Pteraspidomorphi) sono un gruppo di vertebrati senza mascelle, conosciuti solo allo stato fossile. I loro resti sono stati rinvenuti in strati che vanno dall'Ordoviciano inferiore al Devoniano superiore (da 470 a 370 milioni di anni).

Abstract from DBpedia / Wikipedia · CC BY-SA